Since it takes him 180 minutes to make 36 balloon sculptures, we divide 180 by 36 to find how long each one takes.
180 ÷ 36 = 5
It takes Tomas 5 minutes to make one balloon sculpture.
He uses 252 balloons to make the 36 sculptures, so we divide 252 by 36 to find out the number of balloons in each sculpture.
252 ÷ 36 = 7
Tomas uses 7 balloons in each sculpture.